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On iPhone, I perform a HTTP request using NSURLRequest for a chunk of data. Object allocation spikes and I assign the data accordingly. When I finish with the data, I free it up accordingly - however instruments doesn't show any data to have been freed!
My theory is that by default HTTP requests are cached, however - I don't want my iPhone app to cache this data.
Is there a way to clear this cache after a request or prevent any data from being cached in the first place?
I've tried using all the cache policies documented a little like below:
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
theRequest.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
but nothing seems to free up the memory!